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Proceedings Paper

High-performance-readout integrated circuit for surface-micromachined bolometer arrays
Author(s): Yuan Lung Chin; Tai Ping Sun; Jung Chuan Chou; Yuan-Chung Chin; YuanChin Chou; Wen Yaw Chung; Shen Kan Hsiung
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Paper Abstract

In this paper, a high performance CMOS readout structure is proposed and applied for surface micromachined bolometer arrays. The silicon readout circuit is an important interface circuit for detector array and signal processing stages in the IR image syste. Conventional readout configurations for thermal resistive sensors can be classified into four groups (1) Constant Temperature (CT), (2) Constant Current (CC), (3) Constant Voltage (CV), (4) Constant Bias (CB). To achieve a high performance readout and fit the working characteristics of IR detector material, new CMOS readout structures have been developed and fabricated. Based on the application of the proposed CC input biasing technique, a new CMOS Bandgap Reference Constant Current readout structure is proposed and analyzed. The low power CMOS readout circuit is achieved using the reset switch techniques. By applying the proposed bias technique to improve low power, high linearity and low sensitivity of the resistive bolometer detectors and high performance readout interface circuit for the IR linear array is realized with a pixel size of 50 X 50 micrometers 2.

Paper Details

Date Published: 9 November 1999
PDF: 9 pages
Proc. SPIE 3899, Photonics Technology into the 21st Century: Semiconductors, Microstructures, and Nanostructures, (9 November 1999); doi: 10.1117/12.369384
Show Author Affiliations
Yuan Lung Chin, Chung Yuan Christian Univ. (Taiwan)
Tai Ping Sun, National Chi Nan Univ. (Taiwan)
Jung Chuan Chou, National Yunlin Univ. of Science and Technology (Taiwan)
Yuan-Chung Chin, Chung Shan Institute of Science and Technology (Taiwan)
YuanChin Chou, Chung Shan Institute of Science and Technology (Taiwan)
Wen Yaw Chung, Chung Yuan Christian Univ. (Taiwan)
Shen Kan Hsiung, Chung Yuan Christian Univ. (Taiwan)

Published in SPIE Proceedings Vol. 3899:
Photonics Technology into the 21st Century: Semiconductors, Microstructures, and Nanostructures
Seng Tiong Ho; Yan Zhou; Weng W. Chow; Yasuhiko Arakawa, Editor(s)

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